Question

here is a scatter plot for a set of bivariate data.
what would you estimate the correlation coefficient to be?
-0.9 -0.6 0 0.6 0.9

Explanation:

Step1: Analyze Scatter Plot Pattern

The scatter plot shows a weak negative linear trend (points somewhat trend down left to right but with more scatter).

Step2: Evaluate Correlation Coefficients

• -0.9: Strong negative (too tight, not this).
• -0.6: Moderate negative (matches weak - moderate negative trend).
• 0: No correlation (doesn't match, there's a trend).
• 0.6: Positive (trend is negative).
• 0.9: Strong positive (wrong direction).

Answer:

-0.6